Saturday, August18, 2018 L-36.com


Marine Weather and Tides
Poway, CA

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Sunrise 6:12AMSunset 7:30PM Saturday August 18, 2018 9:30 AM PDT (16:30 UTC) Moonrise 1:47PMMoonset 12:00AM Illumination 47% Phase: First Quarter Moon; Moon at 7 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 217 Am Pdt Sat Aug 18 2018
Today..Wind W 10 kt. Gusts to 15 kt in the afternoon. Wind waves 2 ft or less...becoming 3 ft in the afternoon. Mixed swell W 1 to 2 ft at 11 seconds and S 3 to 4 ft at 15 seconds.
Tonight..Wind W 10 kt with gusts to 15 kt in the evening... Becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 11 seconds and S 3 to 4 ft at 14 seconds.
Sun..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 10 seconds and S 2 to 3 ft at 14 seconds.
Sun night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 6 seconds and S 2 to 3 ft at 14 seconds.
Mon..Wind sw to 10 kt. Gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 6 seconds and S 2 ft at 13 seconds.
Mon night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 2 ft.
Tue..Wind variable less than 10 kt...becoming W 10 kt with gusts to 15 kt in the afternoon. Wind waves 2 ft or less... Becoming 3 ft in the afternoon. Mixed swell W 1 to 2 ft and S 2 ft.
Tue night..Wind nw 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and S 2 ft.
Wed..Wind nw 10 to 15 kt. Wind waves 2 ft or less...becoming 3 ft in the afternoon. Mixed swell W 2 ft and S 2 ft.
Wed night..Wind sw 10 kt in the evening... Becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 1 to 2 ft.
PZZ700 217 Am Pdt Sat Aug 18 2018
Synopsis for the far southern california coast.. At 2 am...a 1009 mb low was near needles and a 1030 mb high was 600 nm west of seattle. Weak to moderate onshore flow will continue through Wednesday.


7 Day Forecast for Marine Location Near Poway, CA
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location: 33.03, -117     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 181547
afdsgx
area forecast discussion
national weather service san diego ca
847 am pdt Sat aug 18 2018

Synopsis
High pressure will strengthen over the area today. There is still
enough moisture present for the possibility of a few showers to
develop over the mountains this afternoon. Moisture will decrease
further Sunday through Monday before monsoonal moisture returns
during the middle part of next week, rekindling the chance for
mountain and desert thunderstorms.

Discussion For extreme southwestern california including orange...

san diego... Western riverside and southwestern san bernardino
counties...

satellite imagery this morning had a continuous marine stratus layer
covering all coastal areas. The layer extended up to 20 miles inland
across san diego county. Elsewhere across socal, the skies were
clear. The 00z miramar sounding showed a sharp shift in winds below
8k ft from east to nw. Some drying accompanied the shift, but pw was
still 1.75 inch. There was a 5c inversion based near 2k ft msl. The
sounding had stabilized considerably from yesterday. Except for the
desert passes where westerly winds were gusting to around 25 mph,
winds were light.

Given the high pw values still present, a small chance of showers
seems warranted, but they will have to overcome continued drying and
stabilizing of the environment. No forecast changes.

From previous discussion...

water vapor imagery shows a shortwave departing through the
intermountain west with upper level ridging building in overhead
socal.

Hi-res models are dry today with the WRF showing no cell
development anywhere today. Hrrr shows a small light cells over
the riverside mountains. Moisture levels are still sufficient
under the upper ridge. In fact, satellite-derived precipitable
water shows values ranging from 1.6 inches near the border to
1.2-1.4 inches across the mountains, highest south. Some
instability develops along the mountain crests this afternoon
with MUCAPE values of 500+ j kg. These parameters suggest some
cumulus will develop over the mountains this afternoon with even
the potential of isolated showers. However, the suppressing ridge
should inhibit thunderstorm development. No flash flooding is
expected.

Tranquil days are expected Monday-Tuesday. Kept the forecast dry,
but there still could be just enough moisture present for cumulus
if not a few showers developing in the mountains. We can see the
latest hi-res runs and see how activity fares today to adjust the
forecast as needed. Either way, no significant impacts are
expected with no flash flooding anticipated through Monday.

Models show monsoonal moisture increasing Tuesday-Thursday, as the
upper high shifts east. This will bring a return to afternoon
mountain and desert thunderstorm activity then. How active it gets
though is uncertain and will assess in the days ahead.

Nighttime and morning low cloudiness will dominate at the coast
each day with sunshine each afternoon. It will continue humid as
well. Temps will continue to run above average through next week,
but not to excessive levels.

Aviation
181530z... Coasts valleys... Low clouds with bases 1200-1500 feet msl
and tops to 2200 feet will scatter out by 18z. Spots along immediate
coast may not clear fully or for very long. Clouds will redevelop
and spread inland after 01z with bases 1000-1400 feet msl and spread
not as far inland overnight. Local vis restrictions along inland
edge of cloud deck. Scatter out Sunday by 17z.

Mountains deserts... Cumulus developing over the mountains this
afternoon with bases near 10000 feet msl. There is a slight chance
of showers over mountain crests. Otherwise mostly clear with
unrestricted vis through Sunday morning.

Marine
No hazardous marine weather is expected through Wednesday.

Beaches
Beach hazard statement will continue through this evening for
elevated surf and strong rip currents. A 3-4 ft 15-16 second period
swell from 180 degrees will bring surf of 3-6 ft, with isolated sets
to 9 ft, mainly along the south facing beaches of northern orange
county, and strong rip currents. Surf will lower tonight through
Sunday.

Skywarn
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.

Sgx watches warnings advisories
Ca... Beach hazards statement through this evening for orange county
coastal areas-san diego county coastal areas.

Pz... None.

Public... 10 gregoria
aviation marine... Mm


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LJAC1 - 9410230 - La Jolla, CA 18 mi36 min W 4.1 G 5.1 73°F 70°F1018.2 hPa
LJPC1 - La Jolla, CA (073) 18 mi70 min WNW 1.9 1 ft
46225 - Torrey Pines Outer, CA (100) 22 mi90 min 76°F3 ft
SDBC1 - 9410170 - San Diego, CA 24 mi36 min 1017.8 hPa
46242 - Camp Pendleton Nearshore, CA (043) 27 mi32 min 75°F3 ft
46224 - Oceanside Offshore, CA (045) 27 mi90 min 75°F3 ft
TIXC1 - Tijuana River Reserve, CA 32 mi45 min W 2.9 74°F 1019 hPa70°F
46258 33 mi90 min 75°F4 ft
46232 - Point Loma South, CA (191) 41 mi90 min 75°F4 ft

Wind History for La Jolla, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ramona, Ramona Airport, CA5 mi37 minN 09.00 miFair77°F66°F69%1017.6 hPa
San Diego, Miramar MCAS/Mitscher Field Airport, CA13 mi95 minN 08.00 miOvercast76°F66°F74%1017.6 hPa
Gillespie Field Airport, CA14 mi31 minN 08.00 miPartly Cloudy75°F68°F78%1018.6 hPa
San Diego, Montgomery Field, CA15 mi37 minNNW 47.00 miOvercast75°F66°F76%1018.1 hPa
Carlsbad, McClellan-Palomar Airport, CA17 mi37 minW 36.00 miFog/Mist73°F69°F87%1017.8 hPa
San Diego, San Diego International-Lindbergh Field, CA23 mi39 minWNW 59.00 miOvercast76°F68°F77%1018.6 hPa
Oceanside, Oceanside Municipal Airport, CA23 mi38 minN 07.00 miOvercast75°F68°F79%1017.8 hPa

Wind History from RNM (wind in knots)
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Last 24hrNW5NW6NW8W8W10
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W11W10W8W9W7NW4W5W4W4CalmNW3W3CalmCalmCalmCalmCalmCalm
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W8W10W9W6W8W4NW6W6W3W4W4CalmW3CalmW3CalmCalmNW4
2 days ago4NW8NW6SW8W9
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Tide / Current Tables for La Jolla (Scripps Institution Wharf), California
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La Jolla (Scripps Institution Wharf)
Click for Map
Sat -- 12:49 AM PDT     First Quarter
Sat -- 04:23 AM PDT     3.28 feet High Tide
Sat -- 06:14 AM PDT     Sunrise
Sat -- 09:22 AM PDT     2.29 feet Low Tide
Sat -- 01:47 PM PDT     Moonrise
Sat -- 04:13 PM PDT     4.88 feet High Tide
Sat -- 07:30 PM PDT     Sunset
Sat -- 11:45 PM PDT     1.14 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.82.32.73.13.33.232.82.52.32.32.63.13.64.24.74.94.84.43.832.21.61.2

Tide / Current Tables for La Jolla, Scripps Pier, California
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La Jolla
Click for Map
Sat -- 12:49 AM PDT     First Quarter
Sat -- 04:24 AM PDT     3.30 feet High Tide
Sat -- 06:14 AM PDT     Sunrise
Sat -- 09:22 AM PDT     2.31 feet Low Tide
Sat -- 01:47 PM PDT     Moonrise
Sat -- 04:13 PM PDT     4.90 feet High Tide
Sat -- 07:30 PM PDT     Sunset
Sat -- 11:45 PM PDT     1.15 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.82.32.73.13.33.33.12.82.52.32.32.63.13.64.24.74.94.84.43.832.21.61.2

Weather Map and Satellite Images
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wmap_P
GOES Local Image of Southwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Diego, CA (12,3,4,5)
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Ground Weather Radar Station San Diego, CA
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.